Kinetis K22: 100MHz Cortex-M4F Performance MCU, 128KB Flash, 24KB SRAM, Full-Speed USB, 121-XFBGA
Freescale
Freescale - MK22FN128VLH10
$6.17
Freescale - MK22FN128VLL10
$7.83
Freescale - MK22FN128VMP10
$4.26 - $6.89